[lilypond be08490329a22423bb2a723eea7a5cd33f3a42d8]
I was just about asking on the user list how to get a balloon text for
a ledger line (apparently, it's not possible); while preparing a MWE I
found out that the following crashes lilypond:
\new Staff \with {
\consists "Balloon_engraver"
} {
\balloonGrobText #'LedgerLineSpanner #'(1 . 0.5)
\markup "ledger line"
a''16
}
gdb reports
#0 0x000000000041e9b6 in Paper_column::get_rank() const (this=0x0) at
./include/paper-column.hh:47
#1 0x0000000000589f51 in Item::spanned_rank_interval() const
(this=0x1026a90) at item.cc:191
#2 0x000000000042af1c in Grob::less(Grob*, Grob*) (g1=0x1026a90,
g2=0x10264b0) at grob.cc:537
as the top stack entries.
Werner
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